Nautilus U628 User manual

1

Nautilus™ U628 Upright Bike Service Manual

8016789.091519.A

Service Manual

Section Code Section Page Number

1 Important Safety Instructions 2

1 Safety Warning Labels and Serial Number 3

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1 Earthing Instructions 3

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1 Leveling the Machine 5

1 Moving the Machine 5

1 Connectivity 6

1 Heart Rate Chest Strap Battery Replacement 6

1 Troubleshooting 7

1 Console Service Mode 10

1 Maintenance Parts Exploded View 13

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1 MCB Watts 15

1 Demonstration Mode/Studio Mode 16

1 Replacement Procedure Skill Level 16

Mechanical Procedures

2 Belt Tension Adjustment 17

Part Replacement

3 Console 20

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5 Crank Arms 26

6 Data Cable in the Console Mast 30

7 Drive Belt 33

8 EMS Engine 35

9 Handlebar Assembly 39

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13 RPM Sensor (Speed Sensor) 51

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15 Transport Wheels, Front Endcaps and Footpads 57

™

Table of Contents

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ORIGINAL DOCUMENT - ENGLISH VERSION ONLY

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2

Important Safety Instructions and General Troubleshooting

Information for the Nautilus™ U628 Bike $

Service Procedures

Important Safety Instructions

This icon means a potentially hazardous situation which, if not avoided, could result in death or serious injury. Read and

understand all Warnings on this machine.

Before servicing or using this equipment, obey the following warnings:

Read and understand the Service Manual before working on the machine. Failure to obey the instructions and safety warnings

could cause injury to the service technician or bystanders.

To reduce the risk of electrical shock or unsupervised usage of the equipment, always unplug this machine from the

electrical outlet immediately after using and before cleaning. Place the power cord in a secure location.

• Keep bystanders and children away from the product being serviced at all times.

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• Some components of the equipment can be heavy or awkward. Enlist the service of a second person when you do

maintenance steps involving these components. Do not try to do heavy or awkward steps on your own.

• If replacement parts are necessary, use only genuine replacement parts and hardware supplied by Nautilus. Failure

to use genuine replacement parts can cause a risk to users, keep the machine from operating correctly and void the

warranty.

• Be sure that all warning stickers and instructional placards applied to the product stay present and in good condition

when doing maintenance or replacing components. If at any time the Warning labels become loose, unreadable

or dislodged, replace the labels. If purchased in US/Canada, contact Customer Service for replacement labels. If

purchased outside US/Canada, contact your local distributor for them.

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• Do not put the machine back in service until all shrouds, instructions, warning labels and correct functionality have

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• Connect this machine to a properly grounded outlet only (see Earthing Instructions).

• Keep the power cord away from heat sources and hot surfaces.

• Do not operate where aerosol products are being used.

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NOTICE: This document provides important safety instructions, adjustments, and general troubleshooting information for the maintenance of

the Nautilus™ U628 Upright Bike.

If you need assistance, please contact Customer Service (if purchased in US/Canada) or your local distributor (if purchased

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This icon means a potentially hazardous situation which, if not avoided, could result in death or serious injury. Read and understand

all Warnings on this machine.

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3

Safety Warning Labels and Serial Number

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is a date code: YY/WW (year/week).

Manufacture Date Code: YYWW

Earthing Instructions

This product must be electrically earthed. If a malfunction occurs, correct earthing decreases the risk of electric shock. The

power cord is equipped with an equipment-earthing conductor, and must be connected to an outlet that is properly installed

and earthed.

The electrical wiring must comply with all applicable local and provincial standards and

requirements. Incorrect connection of the equipment-earthing conductor can result in a risk of

electric shock. Consult a licensed electrician if you are not sure that the machine is correctly

earthed. Do not change the plug on the machine – if it does not fit the outlet, have a correct

outlet installed by a licensed electrician.

If you connect the machine to an outlet with RCBO (Residual-Current circuit Breaker with Overload protection), machine

operation can cause the circuit to trip. A Surge Protector Device is recommended to protect the machine.

If a Surge Protector Device (SPD) is used with this machine, be sure that it matches the power rating of

this equipment. Do not connect other appliances or devices to the surge protector in combination with

this machine.

Make sure that the product is connected to an outlet having the same conﬁguration as the plug. No adapter should be used

with this product.

Serial number

Product

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4

Maintenance

Read all maintenance instructions fully before you start any repair work. In some conditions, an assistant is necessary to

do the necessary tasks.

Equipment must be regularly examined for damage and repairs. The owner is responsible to make sure that regular maintenance is

done. Worn or damaged components must be repaired or replaced immediately. Only manufacturer supplied components can be

used to maintain and repair the equipment.

If at any time the Warning labels become loose, unreadable or dislodged, replace the labels. If purchased in US/Canada, contact

Customer Service for replacement labels. If purchased outside US/Canada, contact our local distributor for them.

To reduce the risk of electrical shock or unsupervised usage of the equipment, always unplug this machine from the

electrical outlet immediately after using and before cleaning.

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After each workout, use a damp cloth to wipe your machine and Console free of moisture.

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NOTICE: If necessary, only use a mild dish soap with a soft cloth to clean the Console. Do not clean

with a petroleum based solvent, automotive cleaner, or any product that contains ammonia.

Do not clean the Console in direct sunlight or at high temperatures. Be sure to keep the

Console free of moisture.

Weekly: Clean the machine to remove any dust, dirt, or grime from the surfaces. Check for smooth seat

slider operation. If needed, apply a very thin coating of silicone lube to ease operation.

Silicone lubricant is not intended for human consumption. Keep out of reach of children. Store in a safe

place.

Note: Do not use petroleum based products.

Monthly

or after 20 hours:

Check pedals and crank arms and tighten as necessary. Make sure all bolts and screws are tight.

Tighten as necessary.

When the machine is used in a Studio environment, we recommend that the Pedals be replaced every year to maintain maximum

user safety and performance. Only use replacement Pedals available from Nautilus. Other brands of Pedals may not be designed

for this product, and can cause danger to users and bystanders, and will void the warranty.

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Maximum User Weight: 147.4 kg (325 lbs.)

Total Surface Area (footprint) of equipment: 5670 cm2

Machine Weight: 39.3 kg (86.6 lbs.)

Power Requirements:

Operating Voltage: 220 - 240V AC, 50/60Hz

Operating Current: 2A

Heart Rate Chest Strap: 1 CR2032 battery

DO NOT dispose of this product as refuse. This product is

to be recycled. For proper disposal of this product, please

follow the prescribed methods at an approved waste

center.

61cm (24”)

148cm (58.3”)

98cm (38.6”)

5

Leveling Your Bike

Levelers are found on each side of the Rear Stabilizer.

Turn the stabilizer foot to adjust

Do not adjust the levelers to such a height that

they detach or unscrew from the machine.

Injury to you or damage to the machine can

occur.

Make sure the bike is level and stable before you

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Moving the Bike

To move the upright bike, carefully tilt the Handlebars toward you while

pushing the front of the bike downward. Push the bike to the desired

location.

NOTICE: Be careful when you move the bike. Abrupt motions can

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6

Bluetooth® Connectivity with the “Nautilus Trainer™” Fitness App

7KLV¿WQHVVPDFKLQHLVHTXLSSHGZLWK%OXHWRRWK® connectivity and can wirelessly sync with the “Nautilus Trainer™”

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distance, and more. It records and stores every workout for quick reference. Plus, it automatically syncs your workout data

with MyFitnessPal® and Under Armour® Connected Fitness to make hitting your daily calorie goal easier than ever! Track

your results and share with friends and family.

1. Download the free Software App, named Nautilus Trainer™. The software app is available on the App Store and

Google Play™.

Note: For a complete list of supported devices, review the software app on the App Store or Google Play™.

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3. To sync your workout data with MyFitnessPal® or Under Armour® Connected Fitness, click on the desired program and

login with your information.

Note: The “Nautilus Trainer™” Fitness App will automatically sync your workouts after the initial syncing.

Workout with Other Fitness Apps

7KLV¿WQHVVPDFKLQHKDVLQWHJUDWHG%OXHWRRWK® connectivity which allows it to work with a number of digital partners. For

our latest list of supported partners, please visit: www.nautilus.com/partners

USB Charging

If a USB Device is attached to the USB Port, the Port will attempt to charge the Device.

Note: Depending on the amperage of device, the power supplied from the USB Port may not be enough to operate the

Device and charge it at the same time.

Heart Rate Chest Strap Battery Replacement

The heart rate (HR) chest strap uses a CR2032 battery.

!Do not perform this procedure outdoors or in moist or wet locations.

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and battery.

2. When replacing the battery, insert it in the battery bay with the + symbol

facing up.

3. Reinstall the cover on the strap.

4. Discard the old battery. Dispose of in accordance with local regulations and/

or at approved recycling centers.

5. Inspect your chest strap to ensure function.

Do not use until the equipment has been fully assembled and inspected for correct performance in

accordance with the Owner’s Manual.

CR2032

+

7

Troubleshooting

Condition/Problem Things to Check Solution

No display/partial display/

unit will not turn on

Check electrical (wall)

outlet

Make sure unit is plugged into a functioning wall outlet.

Check connection at front

of unit

Connection should be secure and undamaged. Replace power

cord or connection at unit if either are damaged.

Check Power Switch Turn on the power with the Power Switch.

Check data cable integrity All wires in cable should be intact. If any are visibly crimped or

cut, replace cable.

Check data cable

connections/orientation

Be sure cable is connected securely and oriented properly.

Small latch on connector should line up and snap into place.

Check console display for

damage

Check for visual sign that console display is cracked or other-

wise damaged. Replace Console if damaged.

Console Display ,I&RQVROHRQO\KDVSDUWLDOGLVSOD\DQGDOOFRQQHFWLRQVDUH¿QH

replace the Console.

If the above steps do not resolve the problem, contact Cus-

tomer Service (if inside US/Canada) or your local distributor (if

outside US/Canada).

Unit operates but Contact

HR not displayed

HR cable connection at

Console

Be sure cable is connected securely to Console.

Sensor grip Be sure hands are centered on HR sensors. Hands must be

kept still with relatively equal pressure applied to each side.

Dry or calloused hands 6HQVRUVPD\KDYHGLႈFXOW\ZLWKGULHGRXWRUFDOORXVHGKDQGV

A conductive electrode cream (heart rate cream) can help

make better conduct. These are available on the web or at

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Handlebar If tests reveal no other issues, Handlebars should be replaced.

Unit operates but

Telemetric HR not

displayed

Chest Strap (optional) Strap should be “POLAR®” compatible and uncoded. Make

sure strap is directly against skin and contact area is wet.

Chest Strap Batteries If strap has replaceable batteries, install new batteries.

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the WIRELESS HR setting and make sure that the current

value is set to ON.

Interference Try moving unit away from sources of interference (TV, Micro-

wave, etc).

Replace Chest Strap If interference is eliminated and HR does not function, replace

strap.

Replace Console If HR still does not function, replace Console.

Unit operates but

Telemetric HR displayed

incorrectly

Interference Make sure that the HR receiver is not blocked by a personal

electronic device in the left side of the media tray.

No speed/RPM reading,

Console displays “Please

Pedal” error code

Check data cable integrity All wires in cable should be intact. If any are cut or crimped,

replace cable.

Check data cable

connections/orientation

Be sure cable is connected securely and oriented properly.

Small latch on connector should line up and snap into place.

Check magnet position

(requires shroud removal)

Magnets should be in place on pulley.

Check Speed Sensor

(requires shroud removal)

Speed sensor should be aligned with magnets and connected

to data cable. Realign sensor if necessary. Replace if there is

any damage to the sensor or the connecting wire.

8

Condition/Problem Things to Check Solution

Resistance does not

change (machine turns on

and operates)

Batteries (if equipped) Replace batteries and check for proper operation.

Check Console Check for visual sign that Console is damaged. Replace Con-

sole if damaged.

Check data cable integrity All wires in cable should be intact. If any are visibly crimped or

cut, replace cable.

Check data cable

connections/orientation

Be sure cable is connected securely and oriented properly.

Reseat all connections. Small latch on connector should line up

and snap into place.

If the above steps do not resolve the problem, contact Cus-

tomer Service (if inside US/Canada) or your local distributor (if

outside US/Canada).

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sleep mode) while in use

Check electrical (wall)

outlet

Make sure unit is plugged into a functioning wall outlet.

Check connection at front

of unit

Connection should be secure and undamaged. Replace power

cord or connection at unit if either are damaged.

Check data cable integrity All wires in the cable should be intact. If any are cut or crimped,

replace cable.

Check data cable

connections/orientation

Be sure cable is connected securely and oriented properly.

Small latch on connector should line up and snap into place.

Reset Machine Unplug unit from electrical outlet for 3 minutes. Reconnect to

outlet.

Check magnet position

(requires shroud removal)

Magnets should be in place on pulley.

Check Speed Sensor

(requires shroud removal)

Speed sensor should be aligned with magnets and connected

to data cable. Realign sensor if necessary. Replace if there is

any damage to the sensor or the connecting wire.

Unit rocks/does not sit

level

Check leveler adjustment Adjust levelers until bike is level.

Check surface under unit $GMXVWPHQWPD\QRWEHDEOHWRFRPSHQVDWHIRUH[WUHPHO\XQ-

even surfaces. Move bike to level area.

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to pedal

Check pedal to crank arm

connection

Pedal should be tightened securely to crank. Ensure connec-

tion is not cross-threaded.

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connection

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connected at 180 degrees from each other.

Clicking sound when

pedaling

Check pedal to crank arm

connection

Remove pedals. Make sure there is no debris on threads, and

reinstall the pedals.

Seat post movement Check locking pin Be sure adjustment pin is locked into one of the seat post

adjustment holes.

Check adjustment knob Be sure knob is securely tightened.

Console continuously

cycles through program

screens

Console is in

demonstration mode

Hold down the PAUSE/END button and Left button together for

3 seconds.

Active User does not

change when User button

is pushed

Console is in studio mode Reset the Console (see Console Setup Mode).

If the above step does not resolve the problem, contact Cus-

tomer Service (if inside US/Canada) or your local distributor (if

outside US/Canada).

9

Condition/Problem Things to Check Solution

Workout results will not

sync with Bluetooth®

enabled device

Current console mode Machine must be in Idle Mode to sync. Push the PAUSE/END

button until the Power-Up Mode screen is displayed.

Total time of workout A workout must be longer than 1 minute to be saved and

posted by the Console.

Fitness machine Unplug unit from electrical outlet for 5 minutes. Reconnect to

outlet.

Bluetooth® enabled device Consult your device to be sure that the Bluetooth® wireless

feature has been enabled on it.

Fitness App 5HYLHZ6SHFL¿FDWLRQVRI)LWQHVV$SSDQGFRQ¿UP\RXUGHYLFH

is compatible.

Contact [email protected] (if inside US/Canada) or

your local distributor (if outside US/Canada) for further assis-

tance.

Workout results not post-

ing from Nautilus Trainer™

App to MyFitnessPal®

account or Under Armour®

Connected Fitness

Sync accounts From the Menu icon on the Nautilus Trainer™ App, select the

Sync to MyFitnessPal® or Under Armour® Connected Fitness.

Sync fails Review account and password for MyFitnessPal® / Under Ar-

mour® Connected Fitness.

Contact [email protected] (if inside US/Canada) or

your local distributor (if outside US/Canada) for further assis-

tance.

10

Console Setup Mode

The Console Setup Mode lets you input the date and time, set the units of measurement to either English or Metric,

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1. Hold down the PAUSE/END button and Up Arrow button together for 3 seconds while in the Power-Up Mode to go

into the Console Setup Mode.

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2. The Console display shows the Date prompt with the current setting. To change, push the Increase/Decrease buttons

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active value (month / day / year).

3. Push OK to set.

4. The Console display shows the Time prompt with the current setting. Push the Increase/Decrease buttons to adjust

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(hour / minute / AM or PM).

5. Push OK to set.

6. The Console display shows the Units prompt with the current setting. To change, push OK to start the Units option.

Push the Increase/Decrease buttons to change between “MILES” (Imperial English units) and “KM” (metric units).

Note: If the units change when there is data in User Statistics, the statistics convert to the new units.

7. Push OK to set.

8. The Console display shows the Sound Settings prompt with the current setting. Push the Increase/Decrease buttons

to change between “ON” and “OFF”.

9. Push OK to set.

10. The Console display shows the TOTAL RUN HOURS for the machine.

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11. The Console display shows the Software Version prompt.

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13 . The Console will display the Power-Up Mode screen.

Console Service Mode (for Service Tech use only)

In Power-Up Mode (the “welcome user” screen), push and hold the PAUSE/END button and Up Arrow button for 4

seconds to enter the System menu (Console Setup Mode). In the System menu, press OK 4 times or until TOTAL RUN

HOURS displays on the screen, then push and hold the PAUSE/END and Up Arrow buttons for 4 seconds until “ENTR

MFG TST” appears on the screen to enter the Manufacturing Test menu.

In the Manufacturing Test menu, use the Down/Up Arrow buttons to move through the menu options. Push OK to make a

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If not correct display will be “NVM BD ID” or “NVM FAIL”.

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1. All segments on

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3. Lights the individual segments sequentially.

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CONSOLE SERVICE MODE

11

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If correct, “RTC PASS” will be displayed.

If not correct, “RTC FAIL” will be displayed.

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Place hands on heart rate grips. CHR = [contact heart rate] will be displayed.

Turn on wireless transmitter. WHR = [wireless heart rate] will be displayed.

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12

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the correct order.

Button test sequence

If the display shows an incorrect function, the overlay on the Console may be incorrect for that model. If the display

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within limits.

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If BLE module communication is valid and programmed, “PASS” will be displayed.

If not correct, “BLE FAIL” will be displayed.

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setup, user records and workout records will be reset to defaults.

To skip this option and keep the Console settings, push Down Arrow button.

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machine) and disconnect the Power Cord. Reconnect the Power Cord and turn on the Power Switch.

13

Maintenance Parts Exploded View

Your machine may differ. Use only as a guide.

J

A

B

C

D

E

F

G

H

I

K

M

N

P

Q

R

S

T

U

V

DD EE

II

O

FF

A

J

L

HH

GG

AA

W

YZ

X

D

CC

BB

F

AA

A Console M CHR Sensors Y RPM Sensor

B Console Mast N Seat Z Speed Sensor Magnet (8)

C Pedals O Seat Post w/ Slider AA Data Cable, Lower

D Crank Arms P Adjustment Knob BB Drive Belt

E Left Shroud Q Power Cord CC Drive Pulley

F Power Inlet/Power Switch R Water Bottle Holder DD Handlebar Mount Cover

G Right Shroud S Rear Stabilizer EE T-handle

H Top Shroud T Levelers FF Console Pivot Shroud

I Mast Gasket U Front Stabilizer GG Remote Resistance Control

J Data Cable, Upper V Transport Wheels HH Resistance Cable

K Handlebars W EMS Engine II Cover, Crank Disc

L HR Cable X Motor Control Board (MCB), Watts

14

Electrical Layout

AC

NLS U628/R628 Wiring Diagram

AC Power input

220V - 240V

Console

Contact

Heart Rate

(CHR) sensor

HR cable, 4Pin

I/O (Data)

cable, 6Pin

LN

Power inlet

cable

Resistance

Up

Down

Resistance

Up

Down

EMS

MCB,

Watts

RPM sensor

(magnetic reed switch)

RPM

Sensor

cable,

2Pin

Electromagnet

EMS Cable,

2Pin

Watts/

DC In

cable,

4Pin

Wireless

Heart Rate

Module

HR cable, 3Pin

15

Motor Control Board (MCB), Watts

MCB - right side view

MCB - back left view (MCB shown is on R628 bike)

EMS cable

Watts/DC In

cable

Potentiometer

EMS MCB

cable (line

and neutral)

EMS Engine

assembly

Watts/DC In

cable

EMS MCB Watts

assembly

EMS MCB cable

(line and neutral)

EMS

cable

I/O cable

(to Console)

RPM sensor

cable

16

REPLACEMENT PROCEDURE SKILL LEVEL

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/HYHO,, ,QWHUPHGLDWHVRPHH[SHULHQFHZLWKPHFKDQLFDOSURFHGXUHV

Level III : Advanced - knowledgeable about mechanical procedures

!Disconnect all power to the machine before you service it.

When disposing of old parts, obey the applicable local and provincial requirements.

For instructions to replace the following parts, please refer to the Assembly Manual for your bike:

• Power Cord

• Seat

• Seat Post

• Front Stabilizer

• Rear Stabilizer

• Water Bottle Holder

Demonstration Mode

Demonstration Mode is a feature on newer versions of the Console. It educates an observer about the console in a trade

show or retail environment. During Demonstration Mode, the Console will display each workout Program for 4 seconds from

a specific point of the workout. The Fitness machine ships with Demonstration Mode inactive.

1. With the machine at the Power-Up Mode screen, push and hold down the PAUSE/END button and the Left arrow button

for 3 seconds to shift the Console into the Demonstration Mode.

7RH[LW'HPRQVWUDWLRQPRGHpush and hold down the PAUSE/END button and the Left arrow button for 3 seconds.

Use of this Machine in a Studio (Non-Home) Environment

This fitness machine can be configured for use in a studio environment. When in Studio mode, the machine only has

one active User profile. All other User profiles are disabled. Any workout values displayed on the Console that reference

previous workouts, such as the Goal Track feature, will use a summary of past workouts.

To switch into the Studio (non-home) mode, push and hold down for 3 seconds the PAUSE/END and Decrease(d) buttons.

The Console will display STUDIO SET for three seconds, and then will display PWR CYCLE NOW. Turn the power off for a

few seconds, and then on. The Console will display STUDIO MODE when successfully shifted into Studio mode.

Note: Do not switch your machine into Studio mode unless the machine is in a non-home environment. The Console

must be reset to switch back into the Home mode. If the Console is reset, the Console setup, user records and

workout records will be reset to defaults.

17

Adjust the Belt Tension on the Nautilus™

U628 Bike 6NLOO/HYHO,,

091519.A

Replacement Procedure

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NOTICE: This document provides instructions for the adjustment of the Drive Belt tension on the Nautilus™ U628 Upright Bike.

If you need assistance, please contact Customer Service (if purchased in US/Canada) or your local distributor (if purchased outside

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This icon means a potentially hazardous situation which, if not avoided, could result in death or serious injury. Read and understand

all Warnings on this machine.

Important Safety Instructions - Before servicing or using this equipment, obey the following warnings:

This icon means a potentially hazardous situation which, if not avoided, could result in death or serious injury. Read and understand all

Warnings on this machine.

!To reduce the risk of electrical shock or unsupervised usage of the equipment, always unplug the power cord from the wall out-

let and wait 5 minutes before cleaning, maintaining or repairing this machine. Place the power cord in a secure location.

• Read and understand the Part Replacement Procedure before working on the machine. Failure to obey the instructions and

safety warnings could cause injury to the service technician or bystanders.

• Keep bystanders and children away from the product being serviced at all times.

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• Some components of the equipment can be heavy or awkward. Enlist the service of a second person when you do

maintenance steps involving these components. Do not try to do heavy or awkward steps on your own.

• If replacement parts are necessary, use only genuine replacement parts and hardware supplied by Nautilus. Failure to use

genuine replacement parts can cause a risk to users, keep the machine from operating correctly and void the warranty.

• Be sure that all warning stickers and instructional placards applied to the product stay present and in good condition when

doing maintenance or replacing components. If at any time the Warning labels become loose, unreadable or dislodged,

replace the labels. If purchased in US/Canada, contact Customer Service for replacement labels. If purchased outside US/

Canada, contact your local distributor for them.

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• Do not put the machine back in service until all shrouds, instructions, warning labels and correct functionality have been

YHUL¿HGDQGWHVWHGIRUFRUUHFWSHUIRUPDQFH

Tools Required (not included)

#2 Phillips screwdriver 13mm socket and wrench

Small ﬂathead screwdriver 17mm open end wrench

Crank puller

6mm hex wrench

™

18

Note: Your machine may not match the image. For reference only.

1. Remove the Seat Post and Left Shroud from the Main

Unit. (Refer to the “Replace the Shrouds” procedure.) It is

not necessary to remove the Console and Mast. Slide the

Mast Gasket and Top Shroud up the Mast. Lean the Top

Shroud against the Seat Post mount to keep it clear of the

pulley assembly.

Note: It may be necessary to remove the Water Bottle

Holder.

2. To test the Drive Belt tension:

• Push the Drive Belt downward at the midpoint (M)

between the pulleys and measure the distance. The

Drive Belt should have only 0.25” (0.64 cm) of give. See

Figure 1.

Or:

• Hold the edges of the Drive Belt at the midpoint (M) and

twist it (see Figure 2). It should turn only 90 degrees

(1/4 turn, to vertical).

If the tension is correct, go to Step 6.

If the tension is too loose or too tight, adjust the position of the Belt

Tensioner. Continue to Step 3.

!Disconnect all power to the machine before you service it.

NOTICE: It is necessary to remove the Shrouds for this procedure. Refer to the “Replace the Shrouds” procedure.

Figure 1 - U628 left side

Figure 2

M

0.25”

0.64 cm}

M

A

19

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wrench and a 17mm wrench to loosen the Tensioner

Assembly Hardware (A) that attaches the Tensioner

Assembly to the EMS Engine bracket.

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outside and turn the nut from the inside.

4. Adjust the angle of the Belt Tensioner arm as necessary

to adjust the tension. Hold it in position and tighten the

hardware.

Note: This step may require two people.

5. Carefully turn the crank arm and check the movement of

the drive belt. The Crank Arms and Flywheel should move as

one.

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when you turn the Drive Pulley.

Adjust the belt tension again if necessary.

6. Reassembly is the reverse procedure.

NOTICE: Be sure not to crimp any cables.

7. Final Inspection

Inspect your machine to ensure that all hardware is tight and

components are properly assembled.

!Do not use until the machine has been fully

assembled and inspected for correct performance

in accordance with the Owner’s Manual.

A

Tensioner

pulley

Tensioner

arm

EMS engine

bracket

20

Replace the Console on the

Nautilus™ U628 and R628 Bikes 6NLOO/HYHO,

091519.A

Replacement Procedure

NOTICE: This document provides instructions for the replacement of the Console on the Nautilus™ U628 Upright Bike and R628 Recumbent Bike.

If you need assistance, please contact Customer Service (if purchased in US/Canada) or your local distributor (if purchased outside

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Tools Required (not included)

#2 Phillips screwdriver